Menya ibyuma byacu bitagira umuyonga ibyuma bibiri bisohokera impande zombi, byerekana amasoko abiri yigenga yigenga hamwe nigenzura rya buriwese kugirango byoroherezwe guhinduka mumazi yo guturamo nubucuruzi. Igishushanyo cyihariye cya offset cyongeramo ubwiza bwubwiza nibikorwa bifatika, byuzuye mubikoni, ubwiherero, hamwe n’amazi atandukanye akenera. Yakozwe mu byuma byo mu rwego rwo hejuru ibyuma bitagira umwanda, itanga igihe kirekire kandi ikarwanya ruswa. Biroroshye gushiraho no kubungabunga, valve yacu izana inkunga ikomeye nyuma yo kugurisha no kohereza byihuse, byerekana ibyo twiyemeje muburyo bwiza no guhaza abakiriya.